Decking / Roofing
Boards, joists & felt by area
m
Reading 4 m
m
Reading 3 m
m
Reading 3.6 m
Adds the right top-coat or sealer to the materials list.
Results
Decking boards
42board
Surface area12 m²
Joists @ 400mm11 × 3m
Total joist timber33 linear m
Finish5L Clear wood preservative
Suggested Materials
145×28mm treated softwood decking board
Cut to 3.6m where possible
42 board
47×100mm treated joist (4.8m)
7 pc
5×60mm decking screw (200 box)
5 box
Joist hanger (galvanised)
22 pc
Weed control fabric
14 m²
5L Clear wood preservative
2 coats × 12 m² ÷ 30 m²/tin
1 tin
Estimates use standard UK trade rules of thumb. Always check the bag/spec on the day.